CS Muhlenbach Lusitanos
|Full name||Cercle Sportif Muhlenbach Lusitanos|
|Founded||1932 (as FC Blue Boys Muhlenbach)|
|Ground||Stade Mathias Mamer,
|Capacity||1,100 (200 seated)|
|League||1. Division Serie 1|
|2011–12||Division of Honour, 13th (relegated)|
Cercle Sportif Muhlenbach Lusitanos is an association football club based in the Muhlenbach district of Luxembourg, the capital city of Luxembourg. As of the 2011–12 season, they play in the Luxembourg Division of Honour, the second tier of football in the country. The club was founded in 1932 as FC Blue Boys Muhlenbach, but changed its name to Sport Verein Muhlenbach. The original name was restored in 1944 and remained until 2009, when the current name was adopted.